CN108531082A - A kind of preparation method of magnetic coating - Google Patents
A kind of preparation method of magnetic coating Download PDFInfo
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- CN108531082A CN108531082A CN201810318858.0A CN201810318858A CN108531082A CN 108531082 A CN108531082 A CN 108531082A CN 201810318858 A CN201810318858 A CN 201810318858A CN 108531082 A CN108531082 A CN 108531082A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D199/00—Coating compositions based on natural macromolecular compounds or on derivatives thereof, not provided for in groups C09D101/00 - C09D107/00 or C09D189/00 - C09D197/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09D103/04—Starch derivatives
- C09D103/08—Ethers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D197/00—Coating compositions based on lignin-containing materials
- C09D197/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/43—Thickening agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
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- Plant Pathology (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention belongs to technical field of magnetic materials, and in particular to a kind of preparation method of magnetic coating；Include the following steps：Step 1 prepares nano magnetic material；Step 2 prepares nano-magnetic dispersion liquid；Step 3 prepares magnetic coating；Magnetic coating provided by the invention has the characteristics that magnetomotive height, magnetic powder good dispersion, using effect are good.
Description
Technical field
The invention belongs to technical field of magnetic materials, and in particular to a kind of preparation method of magnetic coating.
Background technology
Green coating refers to that energy saving, low stain water paint, powdery paints, highly filled coating and radiation curing apply
Material, highly filled coating and radiation curable coating etc..Before the 1970s, nearly all coating is all solvent type.
It is more and more low organic molten since the requirement of the expensive price and reduction VOC emission amount of solvent is increasingly strict since the seventies
Agent content and coating without organic solvent are developed on a large scale.
Nano-magnetic coating has the characteristics of magnetomotive, adsorbable magnetic item, simultaneously because its is durable persistently, waterproof is resistance to
Dirty, construction is simple, in the ornamental area for needing magnetic wall surface using more.
Application No. is 201710522705.3 Chinese invention patent applications to provide a kind of painting with magnetomotive function
Material, consists of the following components in percentage by weight：Nanometer black particle 5~10%, nano-titanium dioxide 5~10%, aqueous ring
Oxygen resin 20~30%, carbon black 0.5~1%, organobentonite 3~8%, antifoaming agent 1~5%, thickener 1~3%, remaining is
Water.The coating that the patent application technology provides is water paint, and preparation method is simple, at low cost, and has magnetomotive, can be applied
At building or the back side of ornament materials, appearance is neither influenced, and can make the material after coating that there is magnetomotive, increases its health care work(
Energy.
Application No. is 201710840714.7 Chinese invention patent applications to provide a kind of magnetically attractive nano-waterborne coating
And its preparation method and application, which is the coating being modified with superparamagnetic nanoparticle.Its preparation process：By will be super suitable
The colloidal aqueous dispersions of magnetic ferroferric oxide nano-particles are uniformly mixed with certain proportion with coating raw material and are made, wherein 25-
75% lotion, 15-70% ferroferric oxide gels aqueous dispersions, the preservative of 0.05-0.1% and 12-20% it is other
The water of coating additive and surplus.Based on nano-particle superparamagnetism, the magnetism-absorbing coating of the present patent application technology is only in magnetic field
In the presence of generate part strong induction it is magnetic, realize magnetically attractive.The coating can assign coated surface magnetically attractive function, such as utilize
The coating has, so that it may realize fixation or suspension of the article in the stabilization of wall in conjunction with magnetic.The invention can bring very big to life
It is convenient, have important practical value, be suitble to school, family, office and it is various need paste hang article occasion use.
But technological deficiency existing for above-mentioned patent application technology is：1, the magnetomotive of magnetic coating is insufficient, on wall
It after Tu covers magnetic coating, is only capable of pasting light magnetic material, it is impossible to be used in the fixation or suspension of the object of constant weight are real
It is poor with property；2, the dispersibility of magnetic powder is to be improved in magnetic coating, and magnetic powder dispersibility is bad so that Tu covers the wall of magnetic coating
The position magnetomotive that body has is big, and almost without magnetomotive, the using effect for directly resulting in magnetic coating in this way is poor for some positions.
In order to solve the above technical problems, the Chinese invention patent application application No. is 201610058539.1 provides one kind
MnFe2O4The preparation method of nano magnetic material weighs manganous salt sample, trivalent iron salt sample, using dibenzyl by specific quantity
Ether heats mixed liquor, heating process is in N as solvent and after oleyl amine and oleic acid formation mixed liquor is added2Atmosphere protection
Lower progress can get the microcosmic upper MnFe in symmetrical structure2O4Nano magnetic material can be obtained by selecting suitable heating parameters
Obtain three degree of symmetrical, four degree of symmetrical, six degree of symmetrical, rhombic symmetry MnFe2O4Its MnFe for preparing of nano magnetic material2O4It receives
Rice rice magnetic material has good symmetry；About 50 ran of grain size, close to protein and virus size, and dispersibility
Preferably.
Application No. is 201711245422.5 Chinese invention patent applications to provide a kind of microwave calciothermic reduction preparation
The method of SmCo/Co Nano-composite magnetic materials, belongs to field of magnetic material.It prepares SmCo-OH using supersonic and co-deposition
Then presoma uses microwave calciothermy, prepares SmCo/Co Nano-composite magnetic materials, hard magnetic phase SmCo5With
Sm2Co17, soft magnetic phase Co has exchange-coupling interaction between hard magnetic phase and soft magnetic phase, compared to synthermal lower no microwave radiation technology institute
The magnetic property for preparing sample increases substantially.Present patent application technical method is simple for process, is Nano-composite magnetic materials
Preparation provide a kind of new way.
Application No. is the Chinese invention patents of 201710917269.X to provide a kind of strontium ferrite nano magnetic material
Preparation method prepares egg white aqueous and SrCl respectively first2Solution, FeCl3Mixed salt solution is slowly dropped into and stirs by solution
In egg white water solution under mixing, continue stirring until to form microemulsion solution；The wet colloidal sol that stirring obtains later is put into constant temperature bath
It is dry in pot, obtain solid dry gel；Xerogel is put into agate mortar and is at the uniform velocity ground at same direction, sample is made fully to grind
It clays into power shape；Ground powder is put into alumina crucible, then crucible is placed in Muffle furnace and is sintered, it is to be sintered
After the completion, after cooled to room temperature, taking-up.The colloidal sol-that the present invention makees metal ion match using albumen is solidifying
Glue method is prepared for single-phase SrM ferrite powders, preparation process simple possible, SrM ferrite magnetic material grains made from this method
Diameter is small and uniform, good dispersion, has excellent magnetic property.
But the purpose of the above-mentioned prior art is only in that and solves the problems, such as that nano magnetic material magnetomotive is insufficient, how will
High magnetic nano magnetic material is applied to magnetic coating, improves the dispersibility of magnetic powder, and the good magnetic coating of using effect is made
Still it is a problem to be solved.
Invention content
To solve the above-mentioned problems in the prior art, the purpose of the present invention is to provide a kind of preparations of magnetic coating
Method makes it have the good feature of magnetomotive height, magnetic powder good dispersion, using effect.
The technical solution adopted by the present invention is：A kind of preparation method of magnetic coating, includes the following steps：
Step 1 prepares nano magnetic material：It is continually fed into nitrogen 5-10min to pressure-resistant cylinder of steel, under nitrogen atmosphere protection, is pressed
According to molar ratio 1:2 weigh divalent iron salt, trivalent iron salt in pressure-resistant cylinder of steel, are mixed after benzyl ether, oleyl amine and oleic acid is added
Liquid, pressure-resistant cylinder of steel is closed, by the way of gradually heating, 20 DEG C of holding 30min are first heated to, 80 DEG C of guarantors are then heated to
40min, finally heated to 150 DEG C holding 40min are held, mixed liquor natural cooling collects sediment, and cleaning is dried to obtain nanometer
Magnetic material；
Step 2 prepares nano-magnetic dispersion liquid：The nano magnetic material that step 1 obtains is put into agate mortar by same
Direction is at the uniform velocity ground, and sample is made to be fully ground into uniform, magnetic consistent magnetic powder material；In rotatable vacuum drum
In, sodium acetate, sucrose fatty ester and polyethylene glycol is added and is configured to alkaline base fluid, the Magnetic powder after grinding is then added
Vacuum drum is placed in microwave cavity by material, and 2h, wherein vacuum drum rotating speed is kept to be set as 30r/ under rotary heating
Min, microwave cavity temperature setting are 40 DEG C to get to nano-magnetic dispersion liquid；
Step 3 prepares magnetic coating：It is configured according to following mass parts：10-20 parts of nano-magnetic dispersion liquid, plant cohesive powders
50-80 parts, 10-30 parts of plant thickener, anti-aging agent 1-4 parts inorganic, 1-10 parts of inorganic corrosion inhibitor, 150-500 parts of water；Its
Described in plant cohesive powders using glutinous rice flour, tapioca starch, flour, santal wood powder, carboxymethyl starch or one kind in polished rice powder or
A variety of mixtures；The plant thickener uses Arabic gum；The inorganic anti-aging agent uses nano silicon dioxide；The nothing
Machine preservative uses one or more mixtures in potassium sorbate, calcium propionate or sodium acetate；Prepare the sequence of magnetic coating
For the component precise by above-mentioned in addition to nano-magnetic dispersion liquid first is uniformly mixed；Then it will obtain in step 2
Nano-magnetic dispersion liquid is added in cooling and before stopping rotating in said mixture, is uniformly mixing to obtain magnetic coating.
Optimization, divalent iron salt and trivalent iron salt nominal take 2.5g in step 1；The volume ratio of benzyl ether, oleyl amine and oleic acid
It is 4:1:1, total 100mL；The additive amount of sodium acetate is 3g in step 2, and the additive amount of sucrose fatty ester is 5g, polyethylene glycol
Additive amount be 80mL.
Primary raw material of the present invention be plant cohesive powders, all using the seed of plant, fruit, limb through peeling, drying,
The processes such as crushing are made, nontoxic, it might even be possible to edible.Present invention preferably employs glutinous rice flour, tapioca starch, flour, santal
Wood powder, carboxymethyl starch or polished rice powder are not only nontoxic, but also material is easy to get, cheap, and wherein santal wood powder is even more existing perfume (or spice)
Gas again being capable of expelling parasite antibacterial.Plant thickener of the present invention uses Arabic gum；Arabic gum（Gum Arabic or Acacia
gum）, also referred to as gum arabic is a kind of natural plant of the semidesert band originated on the south Sahara, mainly
Include pectinose, galactolipin, glucuronic acid etc..Food, medicine, cosmetics and other it is industrial have widely answer
With.It is a kind of safe and harmless thickener；Dissolubility in water with height.
Using sucrose fatty ester as nonionic surfactant；Fatty acid cane sugar ester, sucrose ester, abbreviation SE (SUGAR
ESTERS).A kind of nonionic surfactant, the simple substance or mixture generated through esterification by sucrose and aliphatic acid.Because of sugarcane
Sugar contains 8-OH bases, therefore through esterification, and the various products from monoesters to octaester produce.Can be subdivided into mono fatty acid ester,
Double acid ester and tri-fatty acid ester.Using-the OH of sucrose bases as hydrophilic group, the carbon chain moiety of aliphatic acid is lipophilic group, is commonly used hard
The higher fatty acids such as resin acid, oleic acid, palmitic acid (product be powdered), also with lower fatty acids such as acetic acid, isobutyric acids, (product is
Viscous resin shape).Its, easily biological-degradable nontoxic with its and good surface property, are widely used in food, medicine, daily use chemicals, biology
The industries such as enzyme preparation, oil exploitation, weaving and the farming and animal husbandry of engineering.It can organically combine water phase and an oil phase.
The inorganic anti-aging agent uses nano silicon dioxide；Nano silicon dioxide (English name nano-silicon
Dioxide it is) a kind of inorganic chemical industry material, is commonly called as white carbon.Due to being ultrafine nanometer, size range is in 1 ~ 100nm, therefore
With many unique properties, such as has to anti-ultraviolet optical property, anti-aging other materials, intensity and resistance toization can be improved
Learn performance.Purposes is very extensive.Nanometer grade silica is amorphous white powder, nontoxic, tasteless, pollution-free, and micro-structure is
Spherical shape is in cotton-shaped and netted quasi- grain structure, and molecular formula and structural formula are SiO2, not soluble in water.By nano silicon dioxide
Grain is sufficiently and uniformly distributed in resin material, can improve resin-based materials performance comprehensively.Including:A improves intensity and extension
Rate;B improves wearability and improves the finish of material surface;C anti-aging properties.
The inorganic corrosion inhibitor uses one or more mixtures in potassium sorbate, calcium propionate or sodium acetate.Sorb
Sour potassium, it is colourless to the crystallization of white flakes shape or crystalline powder, odorless or slightly stink.It is unstable in air.It can be aoxidized
Coloring.Molecular weight 150.22.There is hygroscopicity.Soluble easily in water, ethyl alcohol.It is mainly used as food preservative and belongs to acidic preservative cooperation
Organic acid is improved using anti-corrosion reaction effect.It is made as raw material using potassium carbonate or potassium hydroxide and sorbic acid.Sorbic acid（Potassium）Energy
Effectively inhibit mould, the activity of saccharomycete and aerobic bacteria, to reach the holding time for effectively extending product.This hair
Bright middle inorganic corrosion inhibitor can inhibit the corruption of natural plant raw material, mouldization, keep adhesive performance, extend adhesive and use
Service life.
The beneficial effects of the present invention are：
1, in step 1, by molar ratio 1:Nanometer is made in nitrogen environment in 2 divalent iron salt, trivalent iron salt under high temperature and pressure
Magnetic material, the used time is short, and heating duration is less than 2h, and nano magnetic material magnetomotive obtained is high, the nano-magnetic of a molecule
Material includes a divalent iron atom, two trivalent iron atoms and four oxygen atoms；Step 2 is at the uniform velocity ground at same direction,
Not only make nano magnetic material granularity small and uniform, but also magnetic consistent magnetic powder material can be obtained, increases
The strong magnetic property of coating obtained；Under rotary heating and microwave action, magnetic powder material is made to be uniformly dispersed in alkali
Property base fluid in, sodium acetate provides alkaline environment, and for sucrose fatty ester as nonionic surfactant, polyethylene glycol is a kind of divides
Powder；During dispersion liquid rotary heating, the component in configuration step three in addition to nano-magnetic dispersion liquid is mixed into mixed
Object is closed, expires 2h in dispersion liquid rotary heating, vacuum drum is stopped rotating, microwave cavity stops heating, but dispersion liquid itself is also
When not yet stopping rotating, while also not cooling down, dispersion liquid is rapidly added in said mixture, magnetic painting is uniformly mixing to obtain
Material.Obtained magnetic coating good dispersion, magnetic consistent, using effect is good.
2, the present invention adopts water as solvent, uses plant proto state raw material for primary raw material, and functional reagent uses inorganic matter,
Has the characteristics that low toxic and environment-friendly.Preparation method provided by the invention, main chain and branch in plant thickener Arabic gum molecule
It is cross-linked, there is stronger permeability, splitting resistance and certain tensile strength；The inorganic nano silica of small molecule,
Nano-magnetic dispersion liquid containing sucrose fatty ester is fully dispersed to arrive Arabic gum molecular side chain and plant cohesive powders strand
In gap in, by Arabic gum molecular backbone and plant cohesive powders molecular backbone organic linking so that coating obtained dispersion
Property is good, and magnetic driven is strong, and existing preferable adhesiveness, prevents from cracking.
3, the present invention passes through repetition test, it is determined that the content of each component, each step acid extraction, obtain
Comprehensive performance it is most strong, achieve unexpected technique effect.
4, coating provided by the invention should be preserved in sealing room temperature decentralization, and be used in 3 months, and performance is best.
Specific implementation mode
It is further elaborated with the present invention below by specific implementation mode.
A kind of preparation method of magnetic coating, includes the following steps：
Step 1 prepares nano magnetic material：It is continually fed into nitrogen 5-10min to pressure-resistant cylinder of steel, under nitrogen atmosphere protection, is pressed
According to molar ratio 1:2 weigh divalent iron salt, trivalent iron salt in pressure-resistant cylinder of steel, are mixed after benzyl ether, oleyl amine and oleic acid is added
Liquid, pressure-resistant cylinder of steel is closed, by the way of gradually heating, 20 DEG C of holding 30min are first heated to, 80 DEG C of guarantors are then heated to
40min, finally heated to 150 DEG C holding 40min are held, mixed liquor natural cooling collects sediment, and cleaning is dried to obtain nanometer
Magnetic material；
Step 2 prepares nano-magnetic dispersion liquid：The nano magnetic material that step 1 obtains is put into agate mortar by same
Direction is at the uniform velocity ground, and sample is made to be fully ground into uniform, magnetic consistent magnetic powder material；In rotatable vacuum drum
In, sodium acetate, sucrose fatty ester and polyethylene glycol is added and is configured to alkaline base fluid, the Magnetic powder after grinding is then added
Vacuum drum is placed in microwave cavity by material, and 2h, wherein vacuum drum rotating speed is kept to be set as 30r/ under rotary heating
Min, microwave cavity temperature setting are 40 DEG C to get to nano-magnetic dispersion liquid；
Step 3 prepares magnetic coating：It is configured according to following mass parts：10-20 parts of nano-magnetic dispersion liquid, plant cohesive powders
50-80 parts, 10-30 parts of plant thickener, anti-aging agent 1-4 parts inorganic, 1-10 parts of inorganic corrosion inhibitor, 150-500 parts of water；Its
Described in plant cohesive powders using glutinous rice flour, tapioca starch, flour, santal wood powder, carboxymethyl starch or one kind in polished rice powder or
A variety of mixtures；The plant thickener uses Arabic gum；The inorganic anti-aging agent uses nano silicon dioxide；The nothing
Machine preservative uses one or more mixtures in potassium sorbate, calcium propionate or sodium acetate；Prepare the sequence of magnetic coating
For the component precise by above-mentioned in addition to nano-magnetic dispersion liquid first is uniformly mixed；Then it will obtain in step 2
Nano-magnetic dispersion liquid is added in cooling and before stopping rotating in said mixture, is uniformly mixing to obtain magnetic coating.
Wherein, divalent iron salt and trivalent iron salt nominal take 2.5g in step 1；The volume ratio of benzyl ether, oleyl amine and oleic acid is
4:1:1, total 100mL；The additive amount of sodium acetate is 3g in step 2, and the additive amount of sucrose fatty ester is 5g, polyethylene glycol
Additive amount is 80mL.
Present embodiment provides the preparation method of magnetic coating, and coating is made to have magnetomotive height, magnetic powder good dispersion, use
The good feature of effect.Specially：1, the magnetomotive of magnetic coating improves, and after Tu covers magnetic coating on wall, can not only paste light
Just magnetic material, the fixation or suspension of the object for the 35g that applies also for weighing, practicability improve；2, magnetic powder in magnetic coating
Dispersibility also greatly improves, and any position magnetomotive of wall that Tu covers magnetic coating is equally big, after uniformly being soundd out with magnet
Magnetism can be obviously experienced, the using effect of magnetic coating is improved.
Claims (2)
1. a kind of preparation method of magnetic coating, it is characterised in that：Include the following steps：
Step 1 prepares nano magnetic material：It is continually fed into nitrogen 5-10min to pressure-resistant cylinder of steel, under nitrogen atmosphere protection, is pressed
According to molar ratio 1:2 weigh divalent iron salt, trivalent iron salt in pressure-resistant cylinder of steel, are mixed after benzyl ether, oleyl amine and oleic acid is added
Liquid, pressure-resistant cylinder of steel is closed, by the way of gradually heating, 20 DEG C of holding 30min are first heated to, 80 DEG C of guarantors are then heated to
40min, finally heated to 150 DEG C holding 40min are held, mixed liquor natural cooling collects sediment, and cleaning is dried to obtain nanometer
Magnetic material；
Step 2 prepares nano-magnetic dispersion liquid：The nano magnetic material that step 1 obtains is put into agate mortar by same
Direction is at the uniform velocity ground, and sample is made to be fully ground into uniform, magnetic consistent magnetic powder material；In rotatable vacuum drum
In, sodium acetate, sucrose fatty ester and polyethylene glycol is added and is configured to alkaline base fluid, the Magnetic powder after grinding is then added
Vacuum drum is placed in microwave cavity by material, and 2h, wherein vacuum drum rotating speed is kept to be set as 30r/ under rotary heating
Min, microwave cavity temperature setting are 40 DEG C to get to nano-magnetic dispersion liquid；
Step 3 prepares magnetic coating：It is configured according to following mass parts：10-20 parts of nano-magnetic dispersion liquid, plant cohesive powders
50-80 parts, 10-30 parts of plant thickener, anti-aging agent 1-4 parts inorganic, 1-10 parts of inorganic corrosion inhibitor, 150-500 parts of water；Its
Described in plant cohesive powders using glutinous rice flour, tapioca starch, flour, santal wood powder, carboxymethyl starch or one kind in polished rice powder or
A variety of mixtures；The plant thickener uses Arabic gum；The inorganic anti-aging agent uses nano silicon dioxide；The nothing
Machine preservative uses one or more mixtures in potassium sorbate, calcium propionate or sodium acetate；Prepare the sequence of magnetic coating
For the component precise by above-mentioned in addition to nano-magnetic dispersion liquid first is uniformly mixed；Then it will obtain in step 2
Nano-magnetic dispersion liquid is added in cooling and before stopping rotating in said mixture, is uniformly mixing to obtain magnetic coating.
2. a kind of preparation method of magnetic coating according to claim 1, it is characterised in that：In step 1 divalent iron salt and
Trivalent iron salt nominal takes 2.5g；The volume ratio of benzyl ether, oleyl amine and oleic acid is 4:1:1, total 100mL；Sodium acetate in step 2
Additive amount is 3g, and the additive amount of sucrose fatty ester is 5g, and the additive amount of polyethylene glycol is 80mL.
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| CN105984903A (en) * | 2016-01-27 | 2016-10-05 | 安徽大学 | Preparation method of MnFe2O4 nano magnetic material |
-
2018
- 2018-04-11 CN CN201810318858.0A patent/CN108531082A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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